GPS units to battle NSW domestic violence

A new device is being trialled in New South Wales to help protect women who are at high risk of domestic abuse.

The SOS alarms, which are about the same size as a mobile phone, use GPS technology so police can quickly locate victims.

If the unit is activated a security company will call the woman and decide whether police should be dispatched.

Through the 12-month trial 50 units have been given to women who are considered at very high risk of experiencing domestic violence.

Minister for Women Pru Goward says it gives women the freedom to move around while still feeling secure.

"The early results are very encouraging. These devices are already having a real impact on the lives of vulnerable women, allowing them to do simple things such as a visit to their local shopping centre or to drop their children off at school," Ms Goward said.

Assistant Commissioner Mark Murdoch says so far police have responded to seven calls triggered by the units and have made one arrest.

"They can go about their business. Have a level of confidence and comfort that, should they need the police, the police are there," he said.

Ms Goward says she will consider permanently rolling out the units, depending on the results of the trial.